Metal door



Aug. 18, 1953 E. S. PERSSON METAL DOOR Filed Nov. 28, 1949 19m d. aeuso/v flfiakhe u- Patented Aug. 18, 1953 Eric Sigfrid lersson, Malmoe, Sweden Application November 28, 1949, Serial No. 129,815

In Sweden December 1,1948

1 Claim.

This invention in general relates to doors and more particularly has reference to the construction of doors having a metal frame.

An object of this invention is to provide a door having a frame of strongest possible construction and yet consuming the least possible amount of material.

Another object of this invention is to provide a frame for a door which enables the several parts of the door to be easily joined together.

A further object of this invention is to provide a frame which is made in such a manner that it can be bent without being damaged and so that it can serve as a bracket for other frame parts, stop strips, glass panel beads or other strips, and which has many advantages over the prior art.

According to the present invention, a door is formed of an inverted U-shaped metal frame providing a head rail and two stiles. The frame is formed of a metal member of I-shaped cross section having two spaced flanges parallel to the plane of the door and having a web connecting the intermediate portions of the flanges and extending perpendicularly to the plane of the door.

A glass pane is mounted within the frame by means of a molding surrounding the edge of the glass pane and having peripheral portions cooperating with the inner portions of flanges of the frame member having the I-shaped cross section.

Means is provided in the lower portion of the inverted U-shaped frame and extending between the stile forming sides thereof for retaining the pane and molding in the upper portion of the frame. An inverted U-shaped metal edge surfacing and fitting strip surrounds the frame and is provided with inwardly extending flanges cooperating with the outer portions of the flanges of the frame forming member.

Due to the fact that outer surfaces of the flanges parallel to the plane of the door are grooved these can be bent on edge without having the surface materially damaged by the tools. Since the frame forming member is shaped as an I-beam with two flanges parallel to the plane of the door it results that the web between these flanges is situated approximately in or at the neutral line or axis when the metal member is bent in one piece and therefore the metal member can be bent without being materially damaged.

To facilitate an understanding of this invention reference is made to the accompanying drawing in which:

Fig. l is a front elevational view of a door with a frame according to the invention and -Fig." 2 is a horizontal sectional view taken on line 2-2 of Figure 1.

The door shown in the drawings comprises a metal frame of inverted U-shape forming the top rail and the two stiles of the door. As shown the frame is formed of a metal member I of I-shaped cross section providing flanges 4 lying in planes parallel to the plane of the door. These two flanges are connected intermediate their ends by a web 41) lying in a plane perpendicular to the plane of the door.

It will be notedthat the outer surfaces of the flanges of member I are provided with grooves 4a to prevent damage to these surfaces in bending the member I of I-shaped cross section to form it into a U-shaped. frame.

As before indicated in bending the member I to form the one-piece frame the web 4b connecting the flanges 4 contains the neutral line or axis and this prevents damage to the member l.

A molding 2 formed of metal is of a cross section to provide a groove 2a for receiving the peripheral edge of the glass pane l0. Molding 2 is also provided with flanges 2b for cooperating with the inner edge portions of flanges 4 to enable the molding and the glass pane to be mounted in the U-shaped frame. Molding 2 is bent with rounded corners as is member I to provide a frame-like device surrounding the glass pane.

In assembling the parts of the door the glass pane [0 with the surrounding molding 2 is positioned between the stile forming legs of the U- shaped frame member I and moved against the upper rail. The glass pane and its surrounding molding is kept in place by a panel 6 and by a lower frame part 1 which is flxed by means of screws or in another suitable manner at the lower ends of the vertical stiles or sides of the U- shaped frame.

The outer peripheral portion of the door is surrounded by an inverted U-shaped metal edge surfacing and fitting strip 3. This strip is provided with inwardly extending flanges which cooperate with flanges 4 to retain the strip 3 in assembled position about member I.

A door such as described may be hung in a door frame also formed of a metal strip 8 as shown in Fig. 2.

Having described my invention, I claim:

A door comprising an inverted U-shaped metal frame providing a head rail and stiles, and formed of a metal member of I-shaped cross section having two spaced flanges parallel to the plane of the door and a web connecting the intermediate portions of the flanges and extending perpendicularly to the plane of the door, a glass pane,

a molding surrounding the edge of said pane and having peripheral portions cooperating with the flanges of said U-shaped frame for mounting said pane within the U-shaped frame, means mounted in the lower portion of the U-shaped frame and extending between the sides thereof for retaining said pane and molding in the upper portion of the U-shaped frame, and an inverted U-shaped metal edge surfacing and fitting strip surrounding the U-shaped frame and provided with inwardly extending flanges cooperating with. the flanges of said U-shaped metal frame.

ERIC SIGFRID PERSSON.

References Cited in the file of this patent]- UNITED STATES PATENTS Number Name Date 1,084,067 Budd Jan. 13, 1914 Number Number 15 735,028 

